在android中编辑文本不允许在setError之后更改drawable.我在密码字段中使用了drawable right,但如果密码字段中出现错误,则不允许在其后更改drawable.错误之前它工作正常.
用于更改眼睛图标运行时的Java代码
private void setPasswordDrawable() { final Drawable showpass_icon = getResources().getDrawable(R.mipmap.ic_action_password_visibility); final Drawable hidepass_icon = getResources().getDrawable(R.mipmap.ic_action_password_visibility_off); final Drawable pass_drawable = getResources().getDrawable(R.mipmap.ic_action_password); pass_drawable.setBounds(0, 0, pass_drawable.getIntrinsicWidth(), pass_drawable.getIntrinsicHeight()); //edtPassword.setCompoundDrawables(pass_drawable, null, showpass_icon, null); edtPassword.setOnTouchListener(new View.OnTouchListener() { @Override public boolean onTouch(View v, MotionEvent event) { if (edtPassword.getCompoundDrawables()[2] == null) { return false; } if (event.getAction() != MotionEvent.ACTION_UP) { return false; } if (event.getX() > edtPassword.getWidth() - edtPassword.getPaddingRight() - showpass_icon.getIntrinsicWidth()) { if (isPasswordVisible) { runOnUiThread(new Runnable() { @Override public void run() { //edtPassword.setError(null); edtPassword.setTransformationMethod( PasswordTransformationMethod.getInstance()); edtPassword.setSelection(edtPassword.getText().length()); showpass_icon.setBounds(0, 0, showpass_icon.getIntrinsicWidth(), showpass_icon.getIntrinsicHeight()); edtPassword.setCompoundDrawables(pass_drawable, null, showpass_icon, null); } }); isPasswordVisible = false; } else { runOnUiThread(new Runnable() { @Override public void run() { //edtPassword.setError(null); edtPassword.setTransformationMethod( HideReturnsTransformationMethod.getInstance()); edtPassword.setSelection(edtPassword.getText().length()); hidepass_icon.setBounds(0, 0, hidepass_icon.getIntrinsicWidth(), hidepass_icon.getIntrinsicHeight()); edtPassword.setCompoundDrawables(pass_drawable, null, hidepass_icon, null); } }); isPasswordVisible = true; } } return false; } }); }
用于设置错误
public void setViewError(View view, String message) { if (view instanceof EditText) { ((EditText) view).setError(message); } }